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Impact of hard magnetic nanocrystals on the properties of hardened cement paste
Publikationstyp
Journal Article
Date Issued
2023-09-08
Sprache
English
Author(s)
Mahlbacher, Markus
Wesemann, Christoph
Mundstock, Alexander
Lübkemann-Warwas, Franziska
Klimke, Stephen
Renz, Franz
Lohaus, Ludger
Haist, Michael
Bigall, Nadja C.
Journal
Citation
Chemie Ingenieur Technik 95: 1-10 (2023)
Publisher DOI
Publisher
Wiley
In this work, nano‐sized hard magnetic gallium‐substituted iron oxide crystals, wherein gallium is used to stabilize the metastable epsilon iron oxide phase, were added to cement‐water suspensions at different ratios, which were subsequently hydrated for at least 28 days. It is shown that higher contents of such nanocrystals in the hardened cement paste introduce a magnetic moment, whereas the mechanical properties remain unchanged compared to non‐blended hardened cement paste for a wide concentration range.
Subjects
Analytical methods
Hard magnetic nanocrystals
Hydrated and hardened cement paste
Material science
DDC Class
540: Chemistry